Kollmorgen E33NRHA-LNN-NS-00 High-performance NEMA 34 hybrid stepping motor

The Kollmorgen E33NRHA-LNN-NS-00 is a high-performance NEMA 34 hybrid stepper motor from the E Series.

This series is known for its “round frame” design and the use of Sigmax® technology, which uses stator-mounted magnets to concentrate magnetic flux, providing up to 25% more torque than standard stepper motors.

Part Number Breakdown

To understand the specific capabilities of your unit, here is the technical breakdown of the nomenclature:

E: Series (Enhanced Sigmax technology for higher torque/acceleration).

3: NEMA 34 frame size ($3.4\text{“}$ / $86\text{ mm}$ flange).

3: 3-stack rotor (Longer body length for higher holding torque).

N: Construction type (Standard NEMA end bell).

R: Connection type (Terminal box / Splashproof terminal wiring chamber).

H: Winding type (High-torque winding optimized for specific current/voltage).

A: Specific winding variation (Current/Resistance rating).

LNN: Lead and connection configuration (Standard leads, no special modifications).

E33NRHA-LNN-NS-00

NS: Shaft type (Standard smooth shaft).

00: Customization code (Standard factory model).

Technical Specifications (Estimated)

Based on the E33 3-stack NEMA 34 configuration, here are the typical performance ratings:

Attribute    Specification

Step Angle    $1.8^\circ$ ($200$ steps per revolution)

Step Accuracy    $\pm 1.5\%$

Holding Torque    Approx. $6.5$ to $7.0\text{ Nm}$ ($920$ to $1000\text{ oz-in}$)

Insulation Class    Class B ($130^\circ\text{C}$)

Insulation Voltage    $340\text{ VDC}$

Frame Size    NEMA 34 ($3.38\text{“} \times 3.38\text{“}$)

Rotor Inertia    Approx. $1.77\text{ kg}\cdot\text{cm}^2$

Key Features

Sigmax® Technology: The “E” designation confirms this motor includes internal permanent magnets in the stator to reduce flux leakage, resulting in higher torque across the entire speed range.

Durability: Features oversized bearings and a polymer-encapsulated stator for better thermal dissipation and resistance to vibration.

Smooth Operation: Optimized for use with micro-stepping drives (like the Kollmorgen P7000 series) to minimize resonance and noise.